The first line of the script determines the shell to start.The first two characters of the first line should be #!, then follows the path to the shell that should interpretthe commands that follow.Blank lines are also considered to be lines, so don't start your script with an empty line.

#!/bin/bash

As noted before, this implies that the Bash executable can be found in /bindebugger for Bash, available at http://bashdb.sourceforge.net